Malicious PDF — malware analysis report

Static analysis result for SHA-256 07ba261f8b0762cd…

MALICIOUS

PDF

44.5 KB Created: 2021-06-03 13:50:22 +07:00 Authoring application: wkhtmltopdf 0.12.6 (via Qt 4.8.7) First seen: 2021-10-04
MD5: 858bbd402bc445142dac5f255da6a5b7 SHA-1: b090ffefe49e982a50f85588e9b28e6b25589cdf SHA-256: 07ba261f8b0762cda5763d06c2d8f05b91b5fb88bcd48f2fb852a1e42ea36a63
82 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

This PDF document was flagged as malicious by an ML classifier. The file routes users through malicious redirector infrastructure and presents a deceptive download button. Specific URLs and indicators for this sample are listed in the indicators section.

Machine Learning

  • Nyx PDF Classifier malicious score 0.9865

Heuristics 4

  • PDF links to a 'free generator / game hack' redirector high PDF_GAME_HACK_REDIRECT_LURE
    PDF's clickable action targets a redirector of the form /app/<id>/<slug>-game-hack — the landing-page shape of a large SEO 'free spins / generator / game hack' lure family that funnels victims through rotating disposable hosts to a malware/scam payload. The multi-link variants also trip ML/link-farm rules; this catches the single-link variants that otherwise score clean.
  • Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
    Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
  • External URI info PDF_URI
    PDF contains an external URL action
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://netcdn.online/app/479516143/free-minecraft-bedrock-server-hosting-game-hack PDF link annotation
    • http://lib.stimykpn.ac.id/repository/gold-cards-coin-master-hack_GM406889139.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/coinmasterfreespins_GM406889139.pdfIn PDF document text
    • http://lib.stimykpn.ac.id//repository/mc-update_GM479516143.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/free-money-in-roblox-vehicle-simulator_GM431946152.pdfIn PDF document text
    • http://lib.stimykpn.ac.id//repository/moonactive-free-spins-2021_GM406889139.pdfIn PDF document text
    • http://lib.stimykpn.ac.id//repository/cheats-coin-master-free-spins-and-news_GM406889139.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/minecraft-dungeons-free-download_GM479516143.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/free-spins-for-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://lib.stimykpn.ac.id//repository/rare-free-links-to-coin-master_GM406889139.pdfIn PDF document text
    • http://lib.stimykpn.ac.id//repository/daily-coin-master-free-spin-apk_GM406889139.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/how-to-hack-coin-master-facebook_GM406889139.pdfIn PDF document text
    • http://lib.stimykpn.ac.id//repository/how-to-get-free-spins-on-coin-master-2021_GM406889139.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/cm-spins_GM406889139.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/coin-master-hack-spins_GM406889139.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/is-coin-master-free_GM406889139.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/wurst-112-2_GM479516143.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/tiktok-free-wala_GM835599320.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/coin-master-generator-hack_GM406889139.pdfIn PDF document text
    • http://lib.stimykpn.ac.id//repository/coin-master-hack-pro-gamers_GM406889139.pdfIn PDF document text
    • http://lib.stimykpn.ac.id/repository/cheats-on-natural-disater-survivle-roblox_GM431946152.pdfIn PDF document text
    • http://en.wikipedia.org/wiki/MIT_LicenseIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
stream_004_off00005215.bin decompressed-pdf-stream PDF FlateDecoded stream at offset 0x5215 25220 bytes
SHA-256: 195a6fe0f7c163b0ce66993f24ce703446e75401313a5ea2fd039630b6ee6e48
font_01_sfnt_off00008a2b.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x8A2B 18672 bytes
SHA-256: fcf161d812b4feaa3e2bf8e8c417d8656b3909a46e27a4c0a1d90eda073f6fc6

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